std::to_string
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< cpp | utility | stacktrace entry
Defined in header <stacktrace> | ||
std::string to_string(conststd::stacktrace_entry& f ); | (since C++23) | |
Returns a string with a description of f.
The standard recommends that the description should provide information about the contained evaluation, including information from f.source_file() and f.source_line().
Contents |
[edit]Parameters
| f | - | a stacktrace_entry whose description is to be returned |
[edit]Return value
A string with a description of f.
[edit]Exceptions
May throw implementation-defined exceptions.
[edit]Notes
Custom allocators support for this function is not provided, because the implementations usually require platform specific allocations, system calls and a lot of CPU intensive work, while a custom allocator does not provide benefits for this function as the platform specific operations take an order of magnitude more time than the allocation.
[edit]Example
Run this code
#include <stacktrace>#include <string>#include <iostream> int main(){auto st = std::stacktrace::current();std::cout<<"Description of an empty stacktrace entry:\n"+std::to_string(std::stacktrace_entry{})<<'\n';if(st.size()>0){std::cout<<"Description of a non-empty stacktrace entry:\n"+std::to_string(st[0])<<'\n';}}
Possible output:
Description of an empty stacktrace entry: Description of a non-empty stacktrace entry: 0x0000000000402DE9 in ./prog.exe
[edit]See also
(C++23) | returns a string with a description of the basic_stacktrace(function template) |
